Actinium By: Bryan Ore Symbol: Ac Atomic #: 89 Atomic mass: 227 amu (Atomic Mass Units) Origin of the element: Greek word actinos (ray) Where is it found? It is not found anywhere, it is man made. Discoverer: Andre Debierne
Date of discovery: 1899 Uses: Thermoelectric power, used in some power plants for heat and electricity. # of protons: 89
# of neutrons: 130 # of electrons: 89 Physical facts: Melting point: 1050.0 degrees Celsius Boiling point: 3200.0 degrees Celsius
By: Bryan Ore
Symbol: Ac
Atomic #: 89
Atomic mass: 227 amu (Atomic Mass Units)
Origin of the element: Greek word actinos (ray)
Where is it found? It is not found anywhere, it is man made.
Discoverer: Andre Debierne
Date of discovery: 1899
Uses: Thermoelectric power, used in some power plants for heat and electricity.
# of protons: 89
# of neutrons: 130
# of electrons: 89
Physical facts:
Melting point: 1050.0 degrees Celsius
Boiling point: 3200.0 degrees Celsius
Density: 10.07 g/cm3
Interesting facts:
Color: Silvery
Crystal structure: Cubic
Highly radioacti
http://www.chemicool.com/elements/actinium.html